I finished to make momentum

     On Sunday(8/17/2014;last day of vacation), after church, I bought some ingredients for my momentum and started to make momentum and finally finished it. However, I knew I made wrong momentum after I finished it because every single line should be same high, but mine was too weak and every single line wasn't same at first time. Also, my balls were not same size. So I started to get help to my parents. First, I bought same ball again. Second, fix it to be EXACTLY same. Lastly, I used block(lego) to make construction. I think the last step was the hardest step because I have to find single little blocks in that big box. Anyway, I finished it. It was much better than before^^.